tool-integration

Designing tools (function calling) that LLM agents invoke in a TypeScript/Node/NestJS backend - schema design, naming and descriptions, input validation, idempotency, error results the model can act on, permissions and authorisation, side-effect classification, confirmation for destructive tools, result size limits, parallel tool calls, and timeouts. Provider-agnostic. Load when defining, reviewing, or debugging tools an agent or chat model can call.